CN105188328B - Electrical system with shielding part - Google Patents
Electrical system with shielding part Download PDFInfo
- Publication number
- CN105188328B CN105188328B CN201510477945.7A CN201510477945A CN105188328B CN 105188328 B CN105188328 B CN 105188328B CN 201510477945 A CN201510477945 A CN 201510477945A CN 105188328 B CN105188328 B CN 105188328B
- Authority
- CN
- China
- Prior art keywords
- shielding part
- shell
- intended
- electrical system
- conductive plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/002—Casings with localised screening
- H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/002—Casings with localised screening
- H05K9/0022—Casings with localised screening of components mounted on printed circuit boards [PCB]
- H05K9/0024—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields
- H05K9/0026—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields integrally formed from metal sheet
- H05K9/0028—Shield cases mounted on a PCB, e.g. cans or caps or conformal shields integrally formed from metal sheet with retainers or specific soldering features
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Developing Agents For Electrophotography (AREA)
- Manufacturing Of Electric Cables (AREA)
Abstract
A kind of electrical system (100), including electrical module (102), the electrical module includes conductive plate (104), shell (110), the shell, which has, to be mounted on the top surface (106) of conductive plate (104), simultaneously by least partly (118) the exposed bottom surface (116) of top surface (106)；Shielding part (132), the ontology (134) including being intended at least partly covering shell (110)；Electronic circuit board (162); for controlling the component of shell (110), it is intended that be covering shielding part (132) in order to making shielding part (132) to protect electronic circuit board (162) from the electromagnetic radiation that is issued in their operation by the electric component of shell (110).Shielding part (132) further includes at least one lug (150), and the lug is made and is extended downwardly of the sheet body of the ontology (134) of shielding part (132) to contact corresponding exposed part (118).
Description
Technical field
The present invention relates to the electromagnetic shielding fields of electrical system.
Background technique
It is known that being controlled power electrical module by means of the electronic circuit board arranged against electrical module.
Now, electrical module issues electromagnetic wave, there is the risk of interference electronic circuit board operation.
In order to avoid this problem, it is known that way be power electrical module and control electronic circuit board between arrange electricity
Magnetic shield.Shielding part is for example by being substantially that the metal sheet of plane is formed.
The module generally comprises the conductive plate that electrical system forms electrical grounding portion.Therefore, by shielding part (and electronics electricity
Road plate) conductive plate is connected to ensure that the connection to electrical grounding portion may be necessary.To such end it is known that way be using peace
Mounted in thereon and conductive plate will be extended to, across the bar of shielding part from electronic circuit board.
The purpose of the present invention is to propose to a kind of electrical systems with simple designs shielding part, at the same be included in shielding part and
Link between conductive plate, especially current source road.
Summary of the invention
For this purpose, proposing a kind of electrical system, comprising:
Electrical module, comprising:
Conductive plate with top surface,
Shell has the bottom surface being mounted on the top surface of conductive plate, while making at least partly exposing for top surface,
The electric component being arranged within the casing,
Electromagnetic shield, the ontology including being intended at least partly covering shell,
Control the electronic circuit board of the component of shell, it is intended that be the shielding part of covering so that shielding part protects electronic circuit
From the electromagnetic radiation issued in their operations by the electric component of shell,
Electrical system is characterized in that, shielding part further include lug made of the lug of at least one shielding part ontology and
The piece is extended downwardly to contact with corresponding exposed part.
According to the present invention, it avoids that shielding part is connected to conductive plate using mounting rod.Therefore, electrical system has less
Component, this simplifies designs.In addition, assembly is simplified, because no longer including bar installation steps.
Optionally, each lug includes end, and the end, which has, to be intended to against the bottom surface that exposed part is installed.
Also optionally, ontology and one or more lug by one and identical sheet body, by cutting and folding this
Sheet body and formed.
Also optionally, shielding part further includes at least one arm extended upwards from shielding part ontology, is mounted with electronics thereon
Circuit board.
Also optionally, one or more arms are formed also from above-mentioned sheet body by cutting and folding the sheet body.
Also optionally, shell further comprises the finger portion being raised above for each arm, especially towards electronic circuit
Plate, and it is mounted with the arm on it.
Also optionally, electrical system further includes the insulation sheet body for being intended to be inserted between shielding part and electronic circuit board.
Also optionally, conductive plate forms the electrical grounding portion of electrical system.
Also optionally, for the corresponding exposed part of conductive plate, shielding part ontology includes being intended to be located at the exposed portion
Opening above point.
Also optionally, electrical system further include:
Shell (case) comprising:
Bottom with top surface, the bottom surface of conductive plate are intended to install against top surface,
Should, for each exposed part of conductive plate, the lid is provided with bar, and the bar extends downwardly and is intended to
Into in the opening for the shielding part being located above the exposed part, bar has the top surface installation for being intended to the lug against shielding part
Bottom end, the bar is intended to contact with the exposed part.
Particularly, lid is intended to closing of housing.
Detailed description of the invention
Referring now to the following drawings, passes completely through way of example and describe the embodiment of the present invention.
Fig. 1 is the exploded view of electrical system according to the present invention.
Fig. 2 is the side cross-sectional view of the electrical system of Fig. 1.
Reference signs list:
100 electrical systems
102 electrical modules
104 conductive plates
The top surface of 106 conductive plates 104
The bottom surface of 108 conductive plates 104
110 shells
The ontology of 112 shells 110
The top surface of 114 shells 110
The bottom surface of 116 shells 110
The exposed part of 118 conductive plates 104
The opening of 124 shells 110
126 pins
The recess of 128 shells 110
The finger portion of 130 shells 110
132 shielding parts
The ontology of 134 shielding parts 132
The opening of 140 shielding parts 132
The top surface of 142 shielding parts 132
The bottom surface of 144 shielding parts 132
The recess of 146 shielding parts 132
The notch of 148 shielding parts 132
The lug of 150 shielding parts 132
The leg of 152 lugs 150
The end of 154 lugs 150
The arm of 156 shielding parts 132
The erection part of 158 arms 156
The end of 160 arms
162 electronic circuit boards
164 insulation boards
The top surface of 166 insulation boards 164
The recess of 168 insulation boards 164
202 shells
The bottom of 204 shells 202
The top surface of 206 bottoms 204
208 cooling pipes
The lid of 210 shells 202
The bar of 212 shells 202
Specific embodiment
Referring to Figures 1 and 2, electrical system 100 according to the present invention will now be described.
Referring to Fig.1, electrical system 100 includes electrical module 102 first.For example, electrical module is power electrical module
(power electrical module) passes through the module of 1 ampere or more electric current.Electrical system 100, it may for example comprise inverse
Become in device (inverter), or more generally, is included in electric pressure converter.
Electrical module 102 includes the conductive plate 104 with top surface 106 and bottom surface 108 first.Conductive plate 104 is plane
With rectangle, for example, thickness is between 1 to 5 millimeter.Conductive plate 104 is intended to form the electrical grounding portion of electrical system 100.
Conductive plate 104 can be made of metal, such as copper or nickel.
Electrical module 102 further includes the insulation crust 110 fixed to conductive plate 104.
Shell 110 includes the ontology 112 with top surface 114 and bottom surface 116, and the bottom surface is mounted on the top of conductive plate 104
On face 106.Shell 110 makes at least partly 118 exposed of top surface 106.Therefore, these exposed parts 118 are to be freed from shell 110
Top surface 106 one or more parts.
In the described example, the ontology 112 of shell 110 is including center portion and on two opposite sides of center portion
Two extensions, 124 make the four corners of the top surface 106 of conductive plate 104 exposed to limit four openings.
Electric component (not shown) is arranged in shell 110.In described example, shell 110 surrounds electric component.This
A little electric components, which are connected to from the pin 126 that the top surface of shell 110 114 is stretched out, (for clarity, only to be quoted two to draw in Fig. 1
Foot).Electric component is also connected to conductive plate 104, especially for being connected to ground.Electric component is, for example, power component,
Being exactly can be by the component of 1 ampere or more electric current.
Recess 128 is further formed in the top surface of shell 110 114.
Shell 110 further includes referring to portion 130 from least one that the center portion of the ontology 112 of shell 110 upwardly extends,
It is exactly towards by the electronic circuit board 162 of subsequent descriptions.
Electrical system 100 further includes shielding part 132.
Shielding part 132 includes the flat body 134 of at least partly top surface 114 of covering shell 110.
In the described example, the ontology 134 of shielding part 132 includes in a manner of being similar to the ontology 112 of shell 110
Center portion and two two extensions on opposite sides in center portion, it is naked with each of top surface 106 to conductive plate 104
Reveal part 118 limit be located at 118 top of the exposed part (and therefore for the exposed part 118, also opening in shell 110
Mouthfuls 124 top) opening 140.
The ontology 134 of shielding part 132 includes top surface 142 and bottom surface 144, top surface 114 of the bottom surface towards shell 110.
Recess 146 is formed in the top surface of shielding part 132 142.It is further formed in the center portion of the ontology 134 of shielding part 132
Notch 148, to allow the pin 126 of shell 110 to pass through.
Shielding part 132 further includes, for each exposed part 118 of the top surface 106 of conductive plate 104, by shielding part 132
Lug 150 and lug 150 made of the sheet body of ontology 134 are extended downwardly to contact with exposed part 118.Show described
In example, each lug 150 includes vertical leg 152.Each lug 150 further includes, at the bottom of leg 152, that is,
It is not coupled in the distal area portion of the leg 152 of ontology 134, horizontal-extending end 154, that is, is parallel to conductive plate 104
Top surface, towards the center portion of the ontology 134 of shielding part 132.End 154 have towards opening 140 top surface and be intended to
Against the bottom surface that exposed part 118 is installed.In addition, forming fixation hole in end 154.
Shielding part 132 further includes, for each finger portion of shell 110, the arm 156 upwardly extended, that is, towards will after
The electronic circuit board 162 of continuous description, arm 156 are made of the sheet body of the ontology 134 of shielding part 132 and are intended to rest in shell
In 110 finger portion 130.In the example of description, each arm 156 includes vertical erection part 158 and the end horizontally extended
160, which has the bottom surface being intended to rest in the finger portion 130 of associated shell 110, and receives electronic circuit
The top surface of plate.
In the described example, the ontology 134 of shielding part 124, lug 150 and arm 156 are by one and identical
Body is formed and cutting and folding the sheet body.Sheet body, for example, with the thickness between 0.5 to 1 millimeter.
Particularly, one in extension that the leg 152 of each lug 150 passes through the ontology 134 for folding shielding part 132
End obtain, and end 154 is obtained by the bottom end of folding leg 152.
The tongue piece that the center portion of the ontology 134 of shielding part 132 is attached to by folding obtains the erection part of each arm 156
158, and the end by folding erection part 158 obtains the end 160 of arm 156.
Shielding part 132 preferably has the plane symmetry relative to front and back P1 and left and right P2 vertical plane.
Electrical system 100 further includes the component that electronic circuit board 162 is used to control shell 110.Electronic circuit board 162 is intended to
To cover shielding part 132 on arm 156 to rest in shielding part 132.Pin 126 is intended to reach electronic circuit board 162, with even
It is connected to electronic circuit board 162, in order to enable electronic circuit board 162 via the component of the control shell 110 of pin 126.
Shielding part 132 is protected electronic circuit board 162 to protect it from and is issued in their operations by the electric component of shell 110
The influence of electromagnetic radiation.For example, shielding part allows to reduce on electronic circuit board 162 50% these electromagnetic radiation.Shielding
Part 132 is for example formed from steel.
Electrical system 100 further includes the insulation board 164 being inserted between shielding part 132 and electronic circuit board 162.Insulation board
164 are for example made of plastic material.Insulation board 164 includes top surface 166, towards the electronic circuit board for being formed with recess 168
162 orientations.
Referring to Fig. 2, electrical system 100 further includes shell 202, and the shell includes bottom 204, and the bottom has top surface
206, the bottom surface 108 of conductive plate 104 is installed against top surface.
Pipeline 208 is formed in the bottom of shell 202 204, especially in the lower section of conductive plate 104.Coolant, such as
Water, it is intended that for the bottom 204 by the pipeline to cool down shell 202.
Shell 202 further includes lid 210, and for each exposed part 118 of the top surface 106 of conductive plate 104, lid 210 has
The bar 212 extended downwardly from the bottom surface of roof 210, that is, towards conductive plate 104.Each bar 212 is intended on other ground
(alongside) pass through electronic circuit board 162, then by the opening of the ontology of shielding part and on the exposed part 118
The opening of the shell of side.Bar 212 has bottom end, which is intended to install against the top surface of lug, the lug
Top surface against the exposed part 118 install.One or more bars 212, which are used as, is held in place shielding part 132.
In the described example, each bar 212 is pierced to receive across the top of lid in a manner of forming sleeve
Screw, screw extend in conductive plate and enter in the bottom of shell.Preferably, it is assembled on conductive plate 104 in lid 210
It is preceding conductive plate 104 not to drill.In which case it is possible to use self-tapping screw (self-tapping screw).
By foregoing invention, the installation of shielding part is simplified, because single part is used for shielding part and is used to be connected to
Electrical grounding portion forms conductive plate.
In addition, the presence of recess 128,146,168 makes it possible to arrange big portion on the bottom surface of electronic circuit board 162
Part.
In addition, lug 132 makes it possible to for shielding part being connected to conductive plate 104, and arm 156 makes it possible to via shielding
Electronic circuit board 162 is connected to conductive plate 104 by part 132.Use the conductive plate in the electrical grounding portion for forming electrical system 100
104, it generates shielding part 132 and electronic circuit board 162 arrives the simple connection in electrical grounding portion.
The present invention is not limited to embodiments above-mentioned, but, in contrast to this, it is defined by the following claims.It is right
It is obvious for modifying for those skilled in the art to it.
In addition, the term used in the claims is not understood as limited to the element of previous embodiment, but should,
In contrast to this, it is interpreted as covering the equivalence element that all those skilled in the art can be inferred that from his or she common sense.
Claims (10)
1. a kind of electrical system (100), comprising:
Electrical module (102), comprising:
Conductive plate (104) with top surface (106),
Shell (110) with bottom surface (116), bottom surface (116) are mounted on the top surface (106) of conductive plate (104), while will top
At least partly (118) in face (106) are exposed,
The electric component being arranged in shell (110),
Electromagnetic shield (132) comprising it is intended to the ontology (134) of at least partly covering shell (110),
Electronic circuit board (162), is used to control the component of shell (110), and the electronic circuit board is intended to cover shielding part
(132) in order to shielding part (132) protection electronic circuit board (162) from the electric component by shell (110) in their operations
The electromagnetic radiation of sending,
The electrical system (100) is characterized in that, shielding part (132) further includes at least one lug (150), described at least one
A lug is made of the sheet body of the ontology (134) of shielding part (132) and extends downwardly to contact corresponding exposed part
(118)。
2. electrical system (100) according to claim 1, wherein each lug (150) includes end (154), the end
Portion has the bottom surface for being intended to install against exposed part (118).
3. electrical system (100) according to claim 1, wherein ontology (134) and one or more lugs (150) by
One and identical sheet body are formed and cutting and folding the sheet body.
4. electrical system (100) according to claim 3, wherein shielding part (132) further includes from shielding part (132)
At least one arm (156) that ontology (134) upwardly extends, and electronic circuit board (162) is intended to rest on the arm.
5. electrical system (100) according to claim 4, wherein one or more arms (156) are also by sheet body, by cutting
The sheet body is cut and folds to be formed.
6. electrical system (100) according to claim 4, wherein shell (110) further includes for each arm (156)
Upward finger portion (130), and arm (156) is intended to rest in the finger portion.
7. further including being intended to be inserted in shielding part according to claim 1 to electrical system described in any one of 6 (100)
(132) the insulation sheet body (164) between electronic circuit board (162).
8. according to claim 1 to electrical system described in any one of 6 (100), wherein conductive plate (104) forms electrical
The electrical grounding portion of system (100).
9. according to claim 1 to electrical system described in any one of 6 (100), wherein for the every of conductive plate (104)
A exposed part (118), the ontology (134) of shielding part (132) include being intended to be located at the opening above the exposed part (118)
(140)。
10. electrical system (100) according to claim 9, further includes shell (202), the shell includes:
Bottom (204) with top surface (206), the bottom surface (108) of conductive plate (104) are intended to install against the top surface；
It covers (210), for each exposed part (118) of conductive plate (104), the lid is provided with bar (212), and the bar is downward
Extend and is intended in the opening (140) for entering the shielding part (132) being located above the exposed part (118), bar (212)
With the bottom end that the top surface for being intended to the lug (150) against shielding part (132) is installed, the bar is intended to exposed with this
Partially (118) contact.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1454067A FR3020742B1 (en) | 2014-05-05 | 2014-05-05 | ELECTRICAL SYSTEM WITH SHIELD |
| FR1454067 | 2014-05-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105188328A CN105188328A (en) | 2015-12-23 |
| CN105188328B true CN105188328B (en) | 2019-05-28 |
Family
ID=52003883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510477945.7A Active CN105188328B (en) | 2014-05-05 | 2015-05-05 | Electrical system with shielding part |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9485893B2 (en) |
| EP (1) | EP2943050B1 (en) |
| JP (1) | JP6614793B2 (en) |
| KR (1) | KR102425986B1 (en) |
| CN (1) | CN105188328B (en) |
| FR (1) | FR3020742B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10667439B1 (en) * | 2018-11-01 | 2020-05-26 | Franklin Electric Company, Inc. | Discrete power component assembly |
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| CN102742377A (en) * | 2010-02-03 | 2012-10-17 | 卓英社有限公司 | Easily soldered shield case for electromagnetic-wave shielding |
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- 2015-05-01 JP JP2015093991A patent/JP6614793B2/en active Active
- 2015-05-04 US US14/703,226 patent/US9485893B2/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| FR3020742A1 (en) | 2015-11-06 |
| KR102425986B1 (en) | 2022-07-26 |
| KR20150126791A (en) | 2015-11-13 |
| US9485893B2 (en) | 2016-11-01 |
| CN105188328A (en) | 2015-12-23 |
| EP2943050B1 (en) | 2019-09-11 |
| JP6614793B2 (en) | 2019-12-04 |
| US20150319890A1 (en) | 2015-11-05 |
| EP2943050A1 (en) | 2015-11-11 |
| JP2015216372A (en) | 2015-12-03 |
| FR3020742B1 (en) | 2016-05-27 |
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